Showing papers on "Extinction ratio published in 1971"
TL;DR: In this paper, the extinction ratio, axis wander of the transmitted vibration over the polarizer aperture and ellipticity of the output beam for various types of prism and sheet polarizers are discussed.
Abstract: Measurements of extinction ratio, axis wander of the transmitted vibration over the polarizer aperture and ellipticity of the output beam are reported for various types of prism and sheet polarizers. The factors limiting the performance of the polarizers are discussed.
19 citations
TL;DR: The reflection, transmission, optical activity, and extinction ratio of a series of mixtures of cholesteryl oleyl carbonate, cholesterolyl nonanoate, and cholestery chloride of different proportions were measured and the wavelength of minimum transmission (lambda(o), maximum rate of change of optical activity), and minimum extinction ratio were nearly to coincide.
Abstract: The reflection, transmission, optical activity, and extinction ratio of a series of mixtures of cholesteryl oleyl carbonate, cholesteryl nonanoate, and cholesteryl chloride of different proportions were measured. The wavelength of minimum transmission (λ0), maximum rate of change of optical activity, and minimum extinction ratio were found nearly to coincide. The bandwidth of these phenomena is of the order of 500 A. The optical rotation asymptotically approaches plus and minus infinity at λ0. The variation of λ0 with temperature is linear between 20°C and 35°C with a slope of 50 A°C−1. By varying the composition, λ0 could be varied from 5000 A to 11000 A.
17 citations
Patent•
24 Sep 1971
TL;DR: In this paper, a multi-channel laser recording system with an extremely high extinction ratio for achieving selected exposure of a record medium by an actuated channel without spurious exposure by non-actuated channels is presented.
Abstract: A multi-channel laser recording system having an extremely high extinction ratio for achieving selected exposure of a record medium by an actuated channel without spurious exposure by non-actuated channels. A cascaded electro-optical modulator assembly is provided in each system channel and is adaptively biased to maintain an optimum extinction ratio.
13 citations